Frangides, Christos Y, Vasilios Koulouras, Sophia N Kouni, Gerasimos V Tzortzatos, Athanasios Nikolaou, John Pneumaticos, Christos J Pierrakeas, Constantinos Niarchos, Nicholas G Kounis, and Constantinos M Koutsojannis. 2006. “Snake Venom Poisoning In Greece. Experiences With 147 Cases”. European journal of internal medicine 17: 24–27.

Pierrakeas, Christos J, Ioannis Panagiotopoulos, and Achilles Kameas. 2013. “A Correlation Verb (Corrverb) Ontology For Object Properties Specification Within Knowledge Domain Representations”. In Proceedings of the 6th Balkan Conference in Informatics, Proceedings of the 6th Balkan Conference in Informatics, ACM, 195–200.

Pierrakeas, Christos J. 2008. “Managing Large Scale Development Of Educational Software”.

Pierrakeas, Christos J, Georgia Solomou, and Achilles Kameas. 2012. “An Ontological Approach In Learning Programming Languages”.

Stamatiou, Yiannis, Christos J Pierrakeas, and Michalis Xenos. 2007. “Cryptographically Secured Communication Between Tutors Of The Computer Science Course Of The Hellenic Open University: Experiences From The Introductory Module ‘Introduction To Computer Science’(In Greek)”. HELLENIC OPEN UNIVERSITY JOURNAL OF INFORMATICS 1.

Theodoratou, Maria, Ourania Andreopoulou, Vassilis Bekos, Christos J Pierrakeas, and Spyros Skiadopoulos. 2009. “Culture Specific Stress Coping Strategies Used To Alleviate Occupational Stress Among Greek Nursing Personnel”. Journal of Medical Psychology 1: 21.

Spanaka, Adamantia, Christos J Pierrakeas, and Achilles Kameas. 2012. “Experience From Designing And Applying Collaborative Learning Services In Distance Adult Education”.

Pierrakeas, Christos J, Georgia Solomou, and Achilles Kameas. 2012. “An Ontology-Based Approach In Learning Programming Languages”. In Informatics (PCI), 2012 16th Panhellenic Conference on, Informatics (PCI), 2012 16th Panhellenic Conference on, IEEE, 393–398.

Kalles, Dimitris, Christos J Pierrakeas, and Michalis Xenos. 2008. “Intelligently Raising Academic Performance Alerts”. 1st International Workshop on Combinations of Intelligent Methods and Applications (CIMA), 18th European Conference on Artificial Intelligence, Patras, Greece: 37–42.

Panagiotopoulos, Ioannis, Aikaterini Kalou, Christos J Pierrakeas, and Achilles Kameas. 2012. “An Ontology-Based Model For Student Representation In Intelligent Tutoring Systems For Distance Learning”. In Artificial Intelligence Applications and Innovations, Artificial Intelligence Applications and Innovations, Springer Berlin Heidelberg, 296–305.